Scaffold-bracket.



Patented Nov. 26, 1918.

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SAMUEL S. COLT, 0]? ORANGE, NEW JERSEY.

SCAFFOLD-BRACKET.

Specification of Letters Patent.

Patented Nov. 26, 1918.

Application filed August 9, 1916. Serial No. 113.857.

To all whom it may concern Be it known that I, SAMUEL S. CoL'r, acitizen of the United States, residing at Orange, in the county of Essexand State of New Jersey, have invented certain new and usefulImprovements in Scaffold-Brackets; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and tocharacters of reference marked thereon, which form a part of thisspecification.

This invention relates, generally, to improvements in brackets; and,.thepresent invention has reference, more articularly, to a novelconstruction of sea old-bracket for use in connection with any form ofscaffoldings, such as are employed by builders, painters, etc.

The present invention has for its principal object to provide a noveland simply constructed bracket of the general conformation hereinaftermore particularly set forth, which is readily applicable to the uprightsor other members of any suitable form of scaffold, is positively held inits supporting relation upon the members of a scaffold, and is readilydetachable there from, the bracket being secured in its mounted positionwithout the use of nails, screws, or the like.

Other objects of this invention not at this time more particularlyenumerated will be clearly understood from the following detaileddescription of the present invention.

With the various objects of the present invention in view, the saidinvention consists, primarily, in the novel scaffold-bracket hereinafterset forth; and, the invention consists, furthermore, in the novelarrangements and combinations-of the various devices and parts, as wellas in the details of the construction of the said parts, all of whichwill be more fully described in the following specification, and thenfinally embodied in the clauses of the claims which are appended to andwhich form an essential part of this specification.

The invention is clearly illustrated in the accompanyingdrawings, inwhich Figure 1 is a front view of the fragmentary portions of two of theuprights of a scaffold, with a bracket showing one embodiment of theprinciples of the present invention mounted upon each upright, with eachbracket represented in end elevation; and Fig. 2 is an end view of thedevices and parts represented in Fig. 1 and looking in the direction ofthe arrow w in said figure.

Fig. 3 is a top or plan view of the upper central portion of one of thesaid brackets, detached from the upright.

Fig. 4- is a fragmentary face view of a lower portion of the bracket,showing in connection therewith, and in front face view a fixtureprovided with a movable holding or retaining stud; Fig. 5 is ahorizontal section of the same, said section being taken on line 5-5 insaid Fig. 4; and Fig. 6 is a bottom view of the parts represented insaid Fig. 4, looking in the direction of the arrow 3 in said latterfigure.

Fig. 7 is a front face view of the frag mentary portions of two of theuprights of a scaflold and a bracket-device connected with saiduprights, but of a modified construction which, however, is still madeaccording to and embodies the principles of the present invention; andFig. 8 is a topedge view of the said bracket-device, withthe saiduprights upon which it is mounted represented in cross-section.

Fig. 9 is an end-face view, on an enlarged scale and looking in thedirection of the arrow 2 in Fig. 7, of a clamping device employed withthe form of bracket represented in said Figs. 7 and 8; and Fig. 10 is avertical section taken on line 10-l0 in said Fig. 9.

Fig. 11 is a top-edge view of certain portions or members of the saidbracket-device, illustrating a modification of the means for securingsaid portions or members in their assembled relation.

Similar characters of reference are employed in all of the said abovedescribed views to indicate corresponding parts.

Referring now to Figs. 1 to 6 inclusive of the drawings, thereference-character l, in-

ing means for securing said securing ele-' ment or embracing device inits adjustable as well as separably mounted relation upon the upright l,or other suitable part of the scaffold,

The said angularly shaped element or member consists, essentially, of asuitable arrangement of angle-irons, usually four of such angle-ironsbeing employed, as here shown in said Fig. 3 of the drawings, and

each angle-iron comprising a pair of right- 'angled members, as 3 and 4.Secured between the members 3 of each pair of angleirons, by means ofrivets 5, or any other suitable fastening means, are the end-portions 7of horizontally disposed bar or rodlike supporting elements 6, andsecured between the other members 4 of each pair of angle-irons, bymeans of rivets 8, or other suitable fastening means, are theend-portions 10 of vertically disposed bar or rodlike bracing orsustaining elements 9. Connecting the outer end-portions 11 of the hori-.zontally disposed supporting elements 6 with the lower 'end-porti011s12of the said vertically'disposed bracing elements 9, and

i secured at said respective end portions by means of rivets 13 and 14,or any other suitable fastening means, are the angularly disposed bracesor struts 15. As shown in the several figures of the drawings, eachangleironis made with an outwardly extending tubular hub, as 16, wherebyeach pair of angle-irons, secured to the respective sup porting elements6 and the bracing elements 9 in the manner previously stated, may beconnected by means of a suitable tightening bolt 16, as will be clearlyevident, each bolt being formed with a suitable head, as 17, andscrew-threaded-shank, as 18. Mounted upon the screw-threaded shank ofeach bolt is a nut like tightening member, as 19, each member 19 beingpreferably provided with a lever 20 forming a handle.

.The referencecharacter 21 indicates a pair of links or plates formed attheir ends with perforated end-portions or eyes, as 22, for thearrangement of the said links or plates upon, the respective bolts inthe manner more particularly represented in said Fig. .3 of thedrawings; Each link or plate '21 may also be provided with anarrangenasaeac ment of biting or holding teats or projections, as 23,which are forced into the upright or post of the scaffold when theembracing device is mounted upon the upright or post in the manner shownin the accompanying drawings, and when the device is secured in itsclamped position by tighteningthe said nut-like'tightening members 19,by means of the said levers 20, as will be clearly evident.

As an extra precaution, there may be connected with the lowerend-portions of the vertical bracing elements 9, suitable fixturesprovided with movable holdingorretaining studs adapted to be driven intothe said uprights or posts 1, substantiallyshown.

Each fixture herein-above mentioned" consists, essentially, of abox-like body 24, which is provided with a suitably formed lug, as 25,and is secured upon the face of the bracing element 9 by means of rivets26, or other suitable fastening means. Upon its lower portion, the saidbox-like body 24 is slotted, as M126, and has a part 27 which provides astop-lug for the purposes to be presently more fully described Theopposite end-portions of the said box-like body 24 are left open, asat'28' and 29, so as to W provide a suitable guide in which is movablyor slidably disposed a stud or pin, as 30, having its end-portion 31projecting from the open part 28 and its suitably pointed end-portion 32projecting from the open part 29, whereby the said pointed end-portion32 of the stud or pin 30 is adapted to be driven into holding orretaining engagement with the upright or post 1, when the end-portion V31 of the said stud or pin is I struck a blow with a hammer, or thelike, as

will be clearly evident and as will be fully understood from aninspection of Fig. 2 of the drawings.

To prevent removal of the said stud or pin 30 from its operativeposition within the said box-like body 24, the said pin or stud 30 isprovided with a downwardly extending projection 33 extending into theslot 126 adapted to be brought into arrested engagement with thestop-lug 27, the portion 31 of the said stud or pin 30 being providedwith a laterally extending projection, as 34, which is adapted to bebrought against the one end of said box-like body 24, so as to limit themovements of the saidpin or stud in either direction, and to prevent itsdisplacement and loss from said box-like member or body24, as will beclearly understood from an inspection more particularly of said Figs.4,5 and'6 of the drawings.

In lieu of the style of bracket made-"as shown in Figs. 1 and 2 ofthe-drawings, fa

lon horizontal su ortin' arm or bar as g P g a.

35, may be employed, and at the free endportion 36 of which may besecured a clampirig'device of the general construction represented inFigs. 7 to 10 inclusive.

'This clamping device consists, essentially,

of a suitably formed block 37 provided with lugs 38 adapted to embracethe free endportion 36 of the horizontal supporting arm or bar 35 andsecured thereto by means of rivets 39, or other suitable fasteningmeans. The said block 37 isalso provided with other lugs 40 adapted toembrace the upper endportion 41 of a vertically disposed braceelement orbar 140, being secured thereto by means of rivets 42, or other suitablefastening means. The lower end-portion 43 of said brace-element or bar140 has secured thereto by means of a rivet 44, or other suitablefastening means, a strut, as 45, the upper end-portion of which issecured by means of a rivet 47, or other suitable fastening means, tothe said supporting arm or bar 35, substantially as shown.

The said block 37 is also provided with an upwardly extending member orelement, as 48, providing a suitable shoe which rests upon the side ofthe vertically disposed brace-element or bar 140. The said block 37 isfurthermore provided with oppositely projecting arms 49, arranged inpairs, substantially as shown, said arms carrylng pivot-pins 50 whichmay be in the form of suitable screws or bolts, as will be evident.Pivotally connected with the said pivotpins 50 are suitably formed viseor clamplng members 51 provided with clamping or biting end-portions, as52. In practice, these end-portions 52 are disposed upon opposite sidesof an upright, post, or other part of a scaffold, substantially as shownin Figs. 7 and 8 of the drawings, and are forced into positive butdetachable engagement with the upright, post or other part of thescaffold, by means of a connecting bolt 53 arranged in suitable holes orperforations 54 with which the said clamping members 51 are provided.Upon the screw-threaded end-portion 55 of the said bolt 53 is a nutlikeor other suitably formed tightening member, as 56, which may be providedwith a suitable operating lever, as 57, or other suitable means, fortightening the said members 51 and their jaws 52 in securely clampedrelation with the upright, post, or other part of the scaffold, as willbe clearly understood from an inspection of said Figs. 7 and 8 of thedrawings.

Instead of permanently connecting the bars or elements 35, and theangularly disposed braces or struts 15 and 45, by means of the rivet 47,in the manner represented in said Figs. 7 and 8, the horizontallydisposed supporting-bars 6 of two brackets may be placed in overlappedrelation, as indicated in Fig. 11 of the drawings, said overlappingmembers of the two brackets being suitably secured'together in theirseparable relation by means of suitable tightening bolts 58 which arepassed through perforations in said overlapping members and nuts, as 59,upon said bolts 58 for securing the said parts, when assembled, in theirtightened relation, as will be clearly understood.

I am fully aware that many changes may be made in the generalarrangements and. combinations of the various devices and parts, as wellas in the details of the construction of the said parts, as set forth inthe foregoing specification, and as defined in the clauses of the claimswhich are appended to the said specification. Hence, I do not limit mypresent invention to the exact arrangements and combinations of theseveral devices and parts, as described in the said specification, nordo I confine myself to the exact details of the construction of the saidparts as illustrated in the accompanying drawings.

I claim 1. A scaffold-bracket comprising a clamping device provided withmeans for the attachment of said clamping device to a member of ascaffold, angle-irons connected with said clamping device, ahorizontally disposed supporting element connected with and extendingfrom said angle-irons, a vertically disposed bracinrr element alsoconnected with and extending from said angleirons, a strut connectedwith said supporting element and with said bracing element, a box-likefixture mounted upon said bracing element, said fixture havingoppositely located openportions and a slotted part, a stop-lug extendingacross said slotted part, a stud slidably disposed within said box-likefixture, said stud having its respective endportions projecting from theoppositely located open portions of said box-like fixture, a laterallyextending stop-projection connected with one end-portion of said stud,and a downwardly extending stop-projection also connected with said studand extending into and movably disposed in the slotted portion of saidbox-like fixture.

2. A scaffold-bracket comprising an embracing device adapted to bemounted upon a member of a scaffold, said device consisting ofangle-irons, said angle-irons being arranged in pairs and eachangle-iron being provided with perforations, bolts mounted in theperforations of each pair of angle irons, links connected with saidbolts, tightening means connected with each bolt, and a supporting meansconnected with said angle-irons.

3. A scaffold-bracket comprising a bracing element, a box-like fixturemounted upon said element, said fixture having oppositely located openportions 'anda slotted part, a

stop-lug extending across-said slotted part, a-stud slidably disposedWithin said boxlike V -fixture,'said stud having its respective endlotion also connected withsai'd stud and extending into and movably"disposed in the slotted portionof said box-like fixture.

In testimony, that I claim the invention set, forth above I havehereunto setmy hand this 4th dayof August, 1916.

' SAMUEL s. com.

Witnesses: I

FRED,K.-;FRAENTZEL, FREDK. W. FRAENTZEL.

Copiesof thiapatent maybe obtained. for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

